COPYCATX 4.2 CODE
On violation of these restrictions and HTTP response is sent to the client with a status code indicating why the request was rejected. Important: NULL pointer dereference on specially crafted HTTP/2 requestĪpache HTTP Server protocol handler for the HTTP/2 protocol checks received request headers against the size limitations as configured for the server and used for the HTTP/1 protocol as well. Moderate: Unexpected URL matching with 'MergeSlashes OFF'Īpache HTTP Server versions 2.4.39 to 2.4.46 Unexpected matching behavior with 'MergeSlashes OFF'Īcknowledgements: Discovered by Christoph Anton Mitterer Reported to security team Low: mod_session response handling heap overflowĪpache HTTP Server versions 2.4.0 to 2.4.46 A specially crafted SessionHeader sent by an origin server could cause a heap overflowĪcknowledgements: Discovered internally Christophe Jaillet Reported to security team Low: mod_session NULL pointer dereferenceĪpache HTTP Server versions 2.4.0 to 2.4.46 A specially crafted Cookie header handled by mod_session can cause a NULL pointer dereference and crash, leading to a possible Denial Of Service There is no report of this overflow being exploitable, nor the Apache HTTP Server team could create one, though some particular compiler and/or compilation option might make it possible, with limited consequences anyway due to the size (a single byte) and the value (zero byte) of the overflowĪcknowledgements: This issue was discovered and reported by GHSL team member (Antonio Morales) Reported to security team Low: mod_auth_digest possible stack overflow by one nul byteĪpache HTTP Server versions 2.4.0 to 2.4.46 A specially crafted Digest nonce can cause a stack overflow in mod_auth_digest. Low: mod_proxy_http NULL pointer dereferenceĪpache HTTP Server versions 2.4.41 to 2.4.46 mod_proxy_http can be made to crash (NULL pointer dereference) with specially crafted requests using both Content-Length and Transfer-Encoding headers, leading to a Denial of ServiceĪcknowledgements: Reported by Marc Stern () Reported to security team Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling') vulnerability in mod_proxy_ajp of Apache HTTP Server allows an attacker to smuggle requests to the AJP server it forwards requests to. Fixed in Apache HTTP Server 2.4.54 moderate: mod_proxy_ajp: Possible request smuggling Consult the Apache httpd 2.2 vulnerabilities list for more information. The initial GA release, Apache httpd 2.4.1, includes fixes for all vulnerabilities which have been resolved in Apache httpd 2.2.22 and all older releases. Please send comments or corrections for these vulnerabilities to the Security Team.
COPYCATX 4.2 FULL
Please note that if a vulnerability is shown below as being fixed in a "-dev" release then this means that a fix has been applied to the development source tree and will be part of an upcoming full release. We also list the versions the flaw is known to affect, and where a flaw has not been verified list the version with a question mark.
Each vulnerability is given a security impact rating by the Apache security team - please note that this rating may well vary from platform to platform. This page lists all security vulnerabilities fixed in released versions of Apache HTTP Server 2.4.
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